Question

Metal compound "A" upon heating strongly releases a gas "B". "B" extinguishes a burning candle. (a) identify "A" (1/2)
(b) Identify "B" (1/2)
(c) Write a skeletal chemical equation for the reaction (1)
(d) Balance the above equation (1)
(e) The reactant in the above reaction is a constituent of ______ (1/2)
(f) Mention one use of the other product of the reaction (1/2)

Answer 1

Answer:

Caco3

co2

caco3=cao+co2